选择 任务栏 右侧"网络"图标，然后移动"亮度 "滑块以 调整亮度。（如果未显示滑块，请参阅下方的“备注”部分。） 某些电脑可能允许 Windows 根据当前照明条件自动调整屏幕亮度。

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

In Outlook, the black color theme includes dark mode, which provides a black background (instead of white) for the message window. You can switch to a white background for the message window if you prefer.

Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app:

Learn how to use virus and threat protection options in Windows Security to scan your device for threats and view the results.

Contact groups, or distribution lists, are a fast way to send a message to multiple email recipients, especially groups you repeatedly contact.

You can add an input language in Settings. Adding an input language lets you set a language-preference order for websites and apps. It also lets you change your keyboard language.

即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：

Erfahren Sie, wie Sie Office 2013 auf Ihrem PC oder Office für Mac 2011 installieren können.